1 / 26

Worldwide Energy Production

Worldwide Energy Production. 2000. 2050 ?. Sustainable Energy. Chapter 22. ENERGY FROM BIOMASS. Photosynthesis 6H 2 0+6CO 2 + solar energy = C 6 H 12 O 6 +6O 2. Fuelwood. Other Sources of Biomass Energy. Dung Where other fuel is in short supply, people often dry and burn animal dung.

ivanbritt
Download Presentation

Worldwide Energy Production

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Worldwide Energy Production 2000 2050? Graphics © The McGraw-Hill Companies, Inc.

  2. Sustainable Energy Chapter 22 Graphics © The McGraw-Hill Companies, Inc.

  3. ENERGY FROM BIOMASS • Photosynthesis • 6H20+6CO2 + solar energy = C6H12O6+6O2 Graphics © The McGraw-Hill Companies, Inc.

  4. Fuelwood Graphics © The McGraw-Hill Companies, Inc.

  5. Other Sources of Biomass Energy • Dung • Where other fuel is in short supply, people often dry and burn animal dung. • Methane • Methane is main component of natural gas produced by anaerobic decomposition. • Negative Impacts Graphics © The McGraw-Hill Companies, Inc.

  6. ENERGY FROM EARTH'S FORCESHydropower Graphics © The McGraw-Hill Companies, Inc.

  7. Hydroelectricity Generation in Canada Atlas of Canada

  8. Dam Drawbacks • Human Displacement • Ecosystem Destruction • Wildlife Losses • Large-Scale Flooding Due to Dam Failures • Sedimentation • Herbicide Contamination • Evaporative Losses • Nutrient Flow Retardation Graphics © The McGraw-Hill Companies, Inc.

  9. Dam Alternatives • Low-Head Hydropower - Extract energy from small headwater dams. • Run-of-River Flow - Submerged directly in stream and usually do not require dam or diversion structure. • Micro-Hyrdo Generators - Small versions designed to supply power to single homes. Graphics © The McGraw-Hill Companies, Inc.

  10. Other Sources of Energy from Earth's Forces • Tidal and Wave Energy • Ocean tides and waves contain enormous amounts of energy that can be harnessed. • Ocean Thermal Electric Conversion • Heat from sun-warmed upper ocean layers is used to evaporate a working fluid, such as ammonia, which has a low boiling point. • Geothermal Energy • High-pressure, high-temperature steam fields exist below the earth’s surface. Graphics © The McGraw-Hill Companies, Inc.

  11. Wind Energy Graphics © The McGraw-Hill Companies, Inc.

  12. Wind Energy in Canada Graphics © The McGraw-Hill Companies, Inc.

  13. Cypress Wind Power Facility Graphics © The McGraw-Hill Companies, Inc.

  14. Negative Impacts of Wind Energy • Interrupt view in remote places • Noise • Destroy sense of isolation • Potential bird kills Graphics © The McGraw-Hill Companies, Inc.

  15. SOLAR ENERGY Graphics © The McGraw-Hill Companies, Inc.

  16. Solar Energy • Passive Solar Heat - Using absorptive structures with no moving parts to gather and hold heat. • Active Solar Heat - Generally pump heat- absorbing medium through a collector, rather than passively collecting heat in a stationary object. • Eutectic Chemicals are also used to store large amounts of energy in a small volume. Graphics © The McGraw-Hill Companies, Inc.

  17. Photovoltaic Solar Energy Graphics © The McGraw-Hill Companies, Inc.

  18. Storing Electrical Energy • Electrical energy storage is difficult and expensive. • Lead-acid batteries are heavy and have low energy density. • Metal-gas batteries are inexpensive and have high energy densities, but short lives. • Alkali-metal batteries have high storage capacity, but are more expensive. • Lithium batteries have very long lives, and store large amounts of energy, but are very expensive. Graphics © The McGraw-Hill Companies, Inc.

  19. FUEL CELLS

  20. Promoting Renewable Energy • Proposed Energy Conservation Policies: • Distributional Surcharges • Small fee levied on all utility customers. • Renewable Portfolio • Suppliers must get minimum percentage of power from renewable sources. • Green Pricing • Allows utilities to profit from conservation programs and charge premium prices for renewable energy. Graphics © The McGraw-Hill Companies, Inc.

  21. Promoting Renewable Energy • "Negawatt" Programs • It is much less expensive to finance conservation projects than to build new power plants. • Cogeneration • Simultaneous production of both electricity and steam, or hot water, in the same plant. Graphics © The McGraw-Hill Companies, Inc.

  22. Energy Costs Graphics © The McGraw-Hill Companies, Inc.

  23. CONSERVATION • Utilization Efficiencies describe how well available energy is used for its intended purpose. • Energy Efficiency is a measure of energy produced compared to energy consumed. • Net Energy Yield - Based on total useful energy produced during the lifetime of an entire energy system, minus the energy required to make useful energy available. Graphics © The McGraw-Hill Companies, Inc.

  24. Energy Conversion Efficiencies Graphics © The McGraw-Hill Companies, Inc.

  25. Net Energy Yields Graphics © The McGraw-Hill Companies, Inc.

  26. Links • Saskatchewan Waste Reduction Council (www.saskwastereduction.ca) • Canadian Wind Energy Association (www.canwea.ca) • Canadian Hydro Developers, Inc. (www.canhydro.com) • Solar Energy Society of Canada (www.solarenergysociety.ca) • Canadian Renewable Fuels Association (www.greenfuels.org) Graphics © The McGraw-Hill Companies, Inc.

More Related